public class CommandCaculator {
    public static void main(String[] args) {
        if (args.length != 2) {
            System.out.println("您输入的参数个数不为 2 个");
            return;
        }
        int i = Integer.parseInt(args[0]);
        int j = Integer.parseInt(args[1]);

        System.out.println(i + " + " + j + " = " + (i + j));

    }
}
